2560 matches found
LOGJAM: TLS connections which support export grade DHE key-exchange are vulnerable to MITM attacks
A flaw was found in the way the TLS protocol composes the Diffie-Hellman exchange for both export and non-export grade cipher suites. An attacker could use this flaw to downgrade a DHE connection to use export-grade key sizes, which could then be broken by sufficient pre-computation. This can lea...
OpenSSL 1.0.1 < 1.0.1n / 1.0.2 < 1.0.2b Multiple Vulnerabilities (Logjam)
Binary data 8790.prm...
BSA-2015-1935
Security Advisory ID : BSA-2015-1935 Component : TLS protocol 1.2 Revision : 5.0 The TLS protocol 1.2 and earlier, when a DHEEXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHEEXPORT choice, which allows man-in-the-middle attackers to conduct...
USN-2639-1: OpenSSL vulnerabilities
Praveen Kariyanahalli, Ivan Fratric and Felix Groebert discovered that OpenSSL incorrectly handled memory when buffering DTLS data. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. CVE-2014-8176 Joseph...
OpenSSL Patches Five Flaws, Adds Protection Against Logjam Attack
The OpenSSL project has patched several moderate- and low-severity security vulnerabilities and also has added protection against the Logjam attack in new releases of the software. Most of the vulnerabilities fixed in the new releases are denial-of-service bugs, but one of them can potentially...
openSUSE Security Update : zeromq (openSUSE-2015-409)
zeromq was updated to fix one security issue and two non-security bugs. The following vulnerabilities were fixed : - CVE-2014-9721: zeromq protocol downgrade attack on sockets using the ZMTP v3 protocol boo931978 The following bugs were fixed : - boo912460: avoid curve test to hang for ppc ppc64...
This POODLE Bites: Exploiting The SSL 3.0 Fallback
Introduction SSL 3.0 RFC6101 is an obsolete and insecure protocol. While for most practical purposes it has been replaced by its successors TLS 1.0 RFC2246, TLS 1.1 RFC4346, and TLS 1.2 RFC5246, many TLS implementations remain backwardscompatible with SSL 3.0 to interoperate with legacy systems ...
openssl security update
CentOS Errata and Security Advisory CESA-2015:1072 Updated openssl packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System CVSS base score,...
LOGJAM: TLS connections which support export grade DHE key-exchange are vulnerable to MITM attacks
A flaw was found in the way the TLS protocol composes the Diffie-Hellman exchange for both export and non-export grade cipher suites. An attacker could use this flaw to downgrade a DHE connection to use export-grade key sizes, which could then be broken by sufficient pre-computation. This can lea...
Design/Logic Flaw
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
CVE-2014-9721
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
CVE-2014-9721
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
UBUNTU-CVE-2014-9721
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
DEBIAN-CVE-2014-9721
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
CVE-2014-9721
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
CVE-2014-9721
libzmq before 4.0.6 and 4.1.x before 4.1.1 allows remote attackers to conduct downgrade attacks and bypass ZMTP v3 protocol security mechanisms via a ZMTP v2 or earlier header...
CVE-2014-9721
CVE-2014-9721 affects libzmq (ZeroMQ core library). Affected versions are libzmq before 4.0.6 and 4.1.x before 4.1.1, where a remote attacker can trigger downgrade attacks to bypass the ZMTP v3 protocol security by sending a ZMTP v2 or earlier header. The issue is due to improper handling of olde...
Fedora 22 : zeromq-4.0.5-3.fc22 (2015-8635)
Cherry-pick a fix for the protocol downgrade attack CVE-2014-9721 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing...